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USGS · 70010715

Antiferromagnetism of UO2⋅2H2O

T. Pankey·F. E. Senftle·F. Cuttitta
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Abstract

Magnetic susceptibility measurements have been made on UO 2 · x H 2 O for x =1.78 to x =2.13, and from 77° to 375°K. As the value of x decreased the susceptibility increased. Both these data and structural arguments imply that the formula of this compound is U(OH) 4 rather than the dihydrate form. Based on this concept the data have been corrected for diamagnetism and also small amounts of UO 2 and H 2 O which were present. The molar susceptibility of U 4+ in U(OH) 4 is nearly an order of magnitude less than in other uranium compounds, and it is suggested that this is probably due to superexchange between adjacent uranium atoms through intervening oxygen atoms.

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T. Pankey, F. E. Senftle, F. Cuttitta. 1963. Antiferromagnetism of UO2⋅2H2O. https://doi.org/10.1063/1.1734516

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